autoCompactEnabled setting not recognized — no way to disable auto-compact

Description

There is no documented or functional way to disable auto-compact via settings.json. The autoCompactEnabled key is not in the settings schema and is silently ignored.

Current behavior

• Setting "autoCompactEnabled": false in ~/.claude/settings.json has no effect
• The status bar still shows "X% until auto-compact"
• Conversations still get auto-compacted
• The full settings JSON schema (from the update-config skill) does not include autoCompactEnabled or any auto-compact-related setting

Expected behavior

There should be a supported setting (e.g., autoCompactEnabled: false or autoCompactThreshold) to disable or control auto-compact behavior, especially for users on 1M context models (Opus 4.6) where context limits are rarely an issue.

Environment

• Claude Code v2.1.81
• Model: Opus 4.6 (1M context)
• Platform: macOS (Darwin 25.1.0)

Steps to reproduce

1. Add "autoCompactEnabled": false to ~/.claude/settings.json
2. Start a new Claude Code session
3. Observe that auto-compact still shows in the status bar and still triggers

Suggestion

Add an autoCompactEnabled boolean to the settings schema, or provide an alternative mechanism to control/disable auto-compact for users who prefer manual compaction via /compact.